GB332789A - Variable speed gearing - Google Patents
Variable speed gearingInfo
- Publication number
- GB332789A GB332789A GB26134/29A GB2613429A GB332789A GB 332789 A GB332789 A GB 332789A GB 26134/29 A GB26134/29 A GB 26134/29A GB 2613429 A GB2613429 A GB 2613429A GB 332789 A GB332789 A GB 332789A
- Authority
- GB
- United Kingdom
- Prior art keywords
- attracted
- yielding
- keys
- train
- clutch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2718/00—Mechanisms for speed-change of planetary gearing, the speed change control being dependent on function parameters of the gearing
- F16H2718/08—Control dependent on speed
- F16H2718/10—Control dependent on speed only the toothed wheels remain engaged
- F16H2718/16—Control dependent on speed only the toothed wheels remain engaged the control being electric
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
332,789. Soc. d'Exploitation des Brevets Cotal. Feb. 9, 1929, [Convention date]. Variable - speed epicyclic gearing comprises a simple train 3, 7, 8, Fig. 2, of which the planets 7 are carried by a driving-shaft 1, the annulus 3 is fast on the driven shaft 2, and the sun 8 may be clutched solid by an electromagnetic clutch or held fast by a like brake. Magnetic action in the clutch &c. may be replaced at will by the use of keys, and the current may be automatically disconnected when the engine is stopped. Thus armature 9 fast to sun 8 may. be attracted to magnet 4 on annulus 3 for solid driving, or, alternatively, attracted to fixed magnet 10 for yielding an over-drive. The amount of air-gap in the magnets is controlled and adjusted by screws 13 which pass through sockets 12, which in turn screw into the gear-case 11. In an arrangement shown in Fig. 3, this over-driving train 3, 7, 8 may be combined with another train using the same annulus 3 and yielding a speed reduction. When clutch armatures 9, 9a are both attracted outwards, both trains are locked solid and a solid drive results. When armature 9 alone is attracted inwards, train 8, 7, 10 operates, yielding an over-drive. When armature 9<a> alone is attracted inwards, train 10, 7<a>, 8a operates, yielding a reduced drive. When both armatures are attracted inwards, the trains work against one another, yielding a fourth speed. To supersede the magnetic action, keys 14, Figs. 4 and 5, are fitted to slide in the outer edges of the armatures 9. These keys are operated in unison by a striker-ring 1 controlled by an eccentric pin 17 in a hand-operated disc 17<a>. The keys 14 can be engaged with notches 15, 15<1> in the magnets 4, 10 respectively, and the keys 14 are provided each with three notches 21 engaged by a locking spring ball 18. A switch for breaking current when engine shaft 1 stops is shown in Fig. 7. A centrifugal weight 28 slides on a conducting-rod 31, which connects at 32 to the clutch coil. In its outmost position the weight 28 contacts at 25<1> with the end of a conducting strip 25, which extends from a brush contact 23. As shaft 1 slows down, weight 28 is thrust inwards by spring 30 and moves over rheostat wire 26, so that the current weakens, the clutch slips, and the driven shaft moves more slowly. At the inmost position of weight 28 the circuit is broken.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR332789X | 1929-02-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB332789A true GB332789A (en) | 1930-07-31 |
Family
ID=8891028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB26134/29A Expired GB332789A (en) | 1929-02-09 | 1929-08-28 | Variable speed gearing |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB332789A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3252354A (en) * | 1962-10-22 | 1966-05-24 | Henry E Roedter | Multiple speed power transmission |
-
1929
- 1929-08-28 GB GB26134/29A patent/GB332789A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3252354A (en) * | 1962-10-22 | 1966-05-24 | Henry E Roedter | Multiple speed power transmission |
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